#include <stdio.h>
#define PI 3.1415926
int main()
{
  double l,s,r,v;
  printf("input radius:");
  scanf("%lf",&r);
  l=2.0*PI*r;
  s=PI*r*r;
  v=4.0/3*PI*r*r*r;
  printf("l=%10.4lf\ns=%10.4lf\nv=%10.4lf\n",l,s,v);
  return 0;
 }